Manifolding attachment for typewriters



L; cossm. MANIFOLDING ATTACHMENT FOR TYPEWRITERS.

APPLICATION FILED JUNE 13, 1921.

Lgmggss, Patented Feb. 28, 1.922.

J Van t on UNITED ST TES ATENT OFFICE.

MALCOLM I). COSSITT, F ALAMEDA, CALIFORNIA, ASSIGNOR TO MANIFOLD IMPRESSIONS COREORA'IION, OF CARSON CITY, NEVADA, A CORPORATION OF NEVADA.

MANIFOLDING ATTACHMENT FOR TYPEWRITERS.

Application filed June 13, 1921.

To all whom it may concern:

Be it known that I, MALCOLM L. Cossrrr, a citizen of the United States, residing at Alameda, in the county of Alemeda and State of California, have invented certain new and useful Improvements in liflanifolding Attachments for Typewriters, of which the followingv is a specification.

My invention relates to that class of at tachments for typewriters and other typing machines, such, for example, as calculating machines and the like, in which a manifolding ribbon is so associated with the. machine as to be readily moved into and out of functional position.

The object of my invention is to provide a manifolding attachment of this class, sim ple in construction, effective in operation, and which can be readily applied to the machine without appreciable changes or alterations therein.

To this end my invention consists in the novel manifolding attachment which i shall now full describe by reference to the ac companying drawings, in which Fig. 1 is an end View of my attachment on the line 1-1 of Fig. 3, showing it applied to the platen-carriage of a machine.

Fig. 2 is a similar view showing the attachment thrown back.

Fig. 3 is a front view, broken, of the at tachment as applied to the platen carriage.

Fig. at is a top view, broken, of the same.

Fig. 5 is a perspective view of the selective push-finger.

Fig. 6 is a perspective view of the connection between the manifolding ribbon and the sliding carrying sleeve.

Fig. 7 is a view showing the functional relation of the main inking ribbon, the manifolding ribbons and the sheets of paper.

1 indicates a pair of standards each having a foot 1. In each standard is pivotally fitted by a pin 2 a head member 3 from which extends an arcuate guide 3. In practice there are a plurality of these guides as seen in Figs. 1 and 2, lying one above the other in spaced relation. I have for illustration here shown three such guides.

Upon each guide is slidably fitted a sleeve 4 to Which is detachably connected a clip 5 on the end of a section, strip or length of manifolding ribbon 6. See Fig. 6. Each Specification of Letters Patent.

Patented Feb. 28, 1922. Serial No. 477,065.

ribbon extends between and is carried by the corresponding sleeves 4 upon corresponding guides 3 at each end, as seen in Figs. 3 and 4, so that by the movement of the sleeves each ribbon may be indepen dently caused to travel in an arcuate path forward and back.

In order to secure the operation in unison of the pairs of when either lever 7 is moved forwardly carrying with it the opposite lever 7, the push fingers 10 engaging their respective sleeves 4 will carry said sleeves and the manifolding ribbon 6 which extends between them forwardly and downwardly in an arcuate path to their lower limit; and upon being moved back will leave them down. The ribbon may then be moved up again by hand directly, but, if desired, it may be moved up b means of a. pivoted spring latch 12 carried by the fingers; said latch being normally held back by contact with the back of the finger but adapted by manual release to spring forward to carry its feet portion 13 in front of and in contact with the sleeve. Thus when the fingers move up, the latches 12 will carry the sleeves and their ribbon back again to their upper limits.

Now, in order, when a plurality of manifolding ribbons are used, to invest the push fingers with automatic ribbon-selective function, said fingers are pivotally carried by the levers by pins 10, and are controlled by springs 14 tending to press them down into successive contact with successive pairs of sle. es 4. When all the sleeves 4 are back in their elevated rear position, the fingers 10 rest against the outermost pair of sleeves with their shoulders 11 lying upon and back ribbon in its forward position, the springs 14 will press the fingers in so that their shoulders will drop in behind the sleeves L of the next pair, and this pair, with the ribbon they bear, may then be moved forward; and so on with each ribbon. The ribbons, either singly, or as a group, may be moved back by throwing into action the spring latches 12 as heretofore described.

As the pivotal points of the levers 7 are here shown as being eccentric to the axis of the arcuate guides 3, provision is made for retaining the proper engagement of the push fingers with the sleeves, by giving their )ivotpins 10 a play back and forth in a slot 15 in the levers 7.

The application of my attachment to the platen-carriage of a typing machine may now be described. 16 is a part of the frame of the platen carriage; 17 is the platen; 18 is the platen shaft; 19 is the paper guide apron; 20, in Fig. 4-, is the main inking ribbon; and 21, in Fig. 7, are the sheets of paper. The standards 1 of my attachment are fitted on the platen carriage beyond the ends of the platen, and the extensions 7 of the heads 3 are fitted under keepers 22 secured to the carriage and adapted to swing thereon to release said extension.

The arcuate guides 3 follow substantially the arc of the platen, as shown in Fig. 1. It will now be seen that by the movement of the sleeves a the manifolding ribbons 6 may be carried ginan arcuate path, from their rear position, forwardly and. down to their functional position in the line of type impact and back again.

As their path of movement is substantially or approximately concentric with the curvature of the platen, due to the arcuate guides 3, the whole attachment may be applied in close relation to the platen, thereby securing compactness, even in the non-functional position of the ribbons, and also conducing to simplicity of construction in that more or less complex provision need not be made for an eccentric or distorted path, to seci .e the proper or accurate functional position of said ribbons. When, however, it is necessary for any purpose, the whole attachment may be thrown upwardly and backwardly well out of the way, by turning; it on its pivotal connection at 2, as shown in Fig. 2.

I claim l. A manifolding attachment for typewriters and the like, comprising a pair of standards adapted to be mounted on the platen-carriage of the machine, one at each end of the platen; an arcuate guide carried by and extending forwardly from each standard; a carrying member slidably mounted on each guide; a manifoldinq ribbon carried by and between said members; and means for moving said members in unison to carry the ribbon in an arcuate path to and from a functional position in the line of type-impact, consisting of a lever pivotally associated with each standard; a connection between said levers; and means carried by the levers and acting on thecarrying members to effect their movement.

2. A manifolding attachment for typewriters and the like, comprising a. pair of standards adapted to be mounted on the platen-carriage of the machine. one at each end of the platen; an arcuate guide carried by and extending forwardly from each standard: a carrying member slidably mounted on each guide; a manifolding ribbon carried by and between said members; and means for moving said members in unison to carry the ribbon in an arcuate path to and from a functional position in the line of typeimpact, consisting of a lever pivotally associated with each standard; a connection between said levers; a push finger *arried by said levers adapted to onpage said members to move them forward; and a latch carried by said fingers and engaging said members to move them back again. 4

In testimony whereof I have signed my name to this specification.

MALCOLM L. COSSITT. 

